Cyclonic separating apparatus
US-9848748-B2 · Dec 26, 2017 · US
for parallel flow
for parallel flow · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B04C5/28 |
| Official title | for parallel flow |
| Display label | for parallel flow |
| Total patents | 270 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 26 |
| 2017 | 21 |
| 2018 | 34 |
| 2019 | 35 |
| 2020 | 44 |
| 2021 | 27 |
| 2022 | 26 |
| 2023 | 21 |
| 2024 | 11 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cyclonic separator having stacked cyclones
US-9849468-B2 · Dec 26, 2017 · US
Cyclone assembly for surface cleaning apparatus and a surface cleaning apparatus having same
US-2017303759-A1 · Oct 26, 2017 · US
Cyclone assembly for surface cleaning apparatus and a surface cleaning apparatus having same
US-2017303757-A1 · Oct 26, 2017 · US
Cyclone assembly for surface cleaning apparatus and a surface cleaning apparatus having same
US-2017303758-A1 · Oct 26, 2017 · US
Cyclone assembly for surface cleaning apparatus and a surface cleaning apparatus having same
US-2017303756-A1 · Oct 26, 2017 · US
Method and a device for separating a multiphasic liquid
US-9797233-B2 · Oct 24, 2017 · US
Dust collector and vacuum cleaner having the same
US-2017296016-A1 · Oct 19, 2017 · US
Dust collector and vacuum cleaner having the same
US-2017296017-A1 · Oct 19, 2017 · US
Vacuum cleaner
US-9788697-B2 · Oct 17, 2017 · US
Pool cleaner power coupling
US-2017247896-A1 · Aug 31, 2017 · US
Separating apparatus and vacuum cleaner
US-2017209011-A1 · Jul 27, 2017 · US
Vacuum cleaner
US-2017209012-A1 · Jul 27, 2017 · US
Separation process and apparatus
US-9649642-B2 · May 16, 2017 · US
Cyclone dust separator arrangement, cyclone dust separator and cyclone vacuum cleaner
US-9649000-B2 · May 16, 2017 · US
Oil separator
US-9630128-B2 · Apr 25, 2017 · US
System and methods for removing entrained liquids
US-9597622-B2 · Mar 21, 2017 · US
Cyclone separating device, dust collecting assembly and cleaner
US-2017055792-A1 · Mar 2, 2017 · US
Joint support system for hydrocyclone liner
US-9573141-B2 · Feb 21, 2017 · US
Closing valve unit for a cyclone
US-9573140-B2 · Feb 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B04C5/28?
- CPC B04C5/28 is the Cooperative Patent Classification code for “for parallel flow.”
- How many patents are filed under CPC B04C5/28 (for parallel flow)?
- Our database includes 270 publications tagged with this CPC code.
- Is patent activity under CPC B04C5/28 growing?
- Publication counts under this code: 11 in 2024 vs 8 in 2025 (latest complete years).